py2 json字符串转字典去掉前缀u详解编程语言

def unicode_convert(input): 
    if isinstance(input, dict): 
        return {unicode_convert(key): unicode_convert(value) for key, value in input.iteritems()} 
    elif isinstance(input, list): 
        return [unicode_convert(element) for element in input] 
    elif isinstance(input, unicode): 
        return input.encode('utf-8') 
    else: 
        return input